No Heat

A complete outage in valley winter weather goes to the front of the schedule, so call and say how long the house has been without heat.

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When this becomes an emergency

The system is completely silent no matter what the thermostat is set to.
The basement feels noticeably colder than it did this morning.
A breaker or a switch near the equipment was found in the off position.
The unit tries to start and then goes dead every time.

What a pro does

Nothing gets replaced until power, then control, then fuel have each been accounted for. A dead furnace and a furnace with an open switch behave identically, so a tech confirms line voltage at the equipment, checks the low-voltage fuse, and verifies the thermostat is actually closing the circuit before touching a single burner component. After that it's a matter of following the startup sequence and finding which step never happened, since a system that stops partway through is being stopped by something specific. In a basement install, condensate and drainage get a hard look, because a blocked drain or a frozen line will lock a modern furnace out completely.

Frequently asked questions

What does it mean when the furnace tries to start and dies?

It means the sequence is getting interrupted at a particular step, which is far more useful information than a system that does nothing at all.

Can a condensate problem shut down a furnace entirely?

On a high-efficiency unit, yes. A backed-up or frozen condensate line trips a safety, and the furnace refuses to run until the water has somewhere to go.

How long can a house coast before it's a real problem?

It depends on insulation and how cold it is outside, but once the interior is heading toward the forties the plumbing becomes the more pressing concern.

Is it fine to keep flipping the breaker back on?

Once is reasonable. If it trips again immediately, something is drawing too much current and repeated resets risk damaging the control board.

No Heat?

Get connected with a local pro now.

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Keep going

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disclaimer: Fargo Heating is a free service to assist homeowners in connecting with local service providers. All contractors/providers are independent and Fargo Heating does not warrant or guarantee any work performed. It is the responsibility of the homeowner to verify that the hired contractor furnishes the necessary license and insurance required for the work being performed. All persons depicted in a photo or video are actors or models and not contractors listed on Fargo Heating.

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